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/* ompositionlistiterator.cc
*
* Copyright 1999,2000,2001 BrightStation PLC
* Copyright 2003,2004,2008 Olly Betts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include <xapian/positioniterator.h>
#include "positionlist.h"
#include "debuglog.h"
#include "omassert.h"
Xapian::PositionIterator::PositionIterator(Internal *internal_)
: internal(internal_)
{
if (internal.get()) {
internal->next();
if (internal->at_end()) internal = 0;
}
}
Xapian::PositionIterator::PositionIterator() : internal(0)
{
}
Xapian::PositionIterator::PositionIterator(const Xapian::PositionIterator &o)
: internal(o.internal)
{
}
Xapian::PositionIterator::~PositionIterator()
{
}
void
Xapian::PositionIterator::operator=(const Xapian::PositionIterator &o)
{
internal = o.internal;
}
Xapian::termpos
Xapian::PositionIterator::operator *() const
{
LOGCALL(API, Xapian::termpos, "Xapian::PositionIterator::operator*", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
RETURN(internal->get_position());
}
Xapian::PositionIterator &
Xapian::PositionIterator::operator++()
{
LOGCALL_VOID(API, "Xapian::PositionIterator::operator++", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
internal->next();
if (internal->at_end()) internal = 0;
return *this;
}
// extra method, not required to be an input_iterator
void
Xapian::PositionIterator::skip_to(Xapian::termpos pos)
{
LOGCALL_VOID(API, "Xapian::PositionIterator::skip_to", pos);
if (!internal.get()) return;
Assert(!internal->at_end());
internal->skip_to(pos);
if (internal->at_end()) internal = 0;
}
std::string
Xapian::PositionIterator::get_description() const
{
/// \todo display contents of the object
return "Xapian::PositionIterator()";
}
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